George a



No; 609,48l.

Patented Aug. 23, 898. G. A. TURNBULL.

LATH.

JW/orneys Price,

GEORGE A. TURNBULL, OF CHICAGO,

ILLINOIS, ASSIGNOR TO ROSELLA E.

TURNBULL, OF SAME PLACE.

LATH.

SPECIFICATION forming part of Letters Patent No 609,481, dated August 23, 1898. Application filed February 11, 1998- $erial No. 669,979. (No model.)

To all whom it may concern:

Be it known that I, GEORGE A. TURNBULL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Laths; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which IO it appertains to make and use the same.

My invention relates to improvements in laths, particularly metallic or sheet-metal laths.

It has for its objects, among other things,

1 to effectively secure the mortar in place to provide for the ready application of mortar of a greater or less consistency, hard or common, so called; to firmly key the same upon the laths; to strengthen the lath more especially at the key-forming points, and to provide for the ready nesting of the laths for convenience for packing and shipping the same.

The invention consists, primarily, of a lath 2 5 produced or struckup, preferably, from sheet metal, with a series of keys, each series comprising an outstanding or offset trough or. cup and, say, four ledges or flanges flanking the edges of said trough or cup, and the 0 opposite edges of holes or keyways produced by striking up said troughs or cups, and said troughs or cups alternating each other, and in producing said troughs or cups approximately pyramidal or Mansard-roof like in their general outline or contour, all

as hereinafter more fully disclosed, and specifically pointed out in the claims.

Latitude will be allowed herein as to matters of detail Without departing from the 0 spirit or principles of the invention, and yet the same remain intact. I

In the accompanying drawings, Figure 1 is a face view of my improved lath. Fig. 2 is a rear view. Fig. 3 is a longitudinal section.

Fig. 4 is a cross-section thereof.

In carrying out my invention I produce or strike up, preferably from sheet metal or iron, a lath A, with series of keys B, by machinery specially adapted to that end, simple and inexpensive, embodying principally suitably. constructed or shaped rolls. (Not here shown.)

Each series of keys B consists of troughs or cups 1), preferably ranging vertically in the direction of the length of the lath, the troughs or cups of the horizontal series arranged parallel and upper and lower seriesarranged in alinement, and of lateral ledges or flanges b, projecting from or flanking the edges of said troughs, and of the opposite 6o edges of the keyways or passages b produced or formed by the sinking or striking up of said troughs, to produce an interlocking or common mortar, so called, or by more or less flaring the flanges or ledges b, more particularly those at the edges of the troughs or cups 7), the same end may be attained.

The series of troughs B, consequently the keyways or passages 19?, alternate each other, further effecting the interlocking action there of on the mortar, and said troughs or cups are approximately pyramidal or Mansard like in their general outline or contour, whereby it is found that they are strengthened. and made more durable or lasting; also thus con structed the lathsare adapted to be more readily or conveniently packed for nesting and shipment, as will be readily appreciated.

, Each lath thus constructed constitutes one 8 5 of i a series of lath-sections when applied for use, covering the walls'and ceilings of the rooms of a house or building. Therefore each lath or lath-section is so constructed that two or more of its end troughs, with the corresponding flanges and keyways or passages, are formed in sections to register or form the complements of like sectional troughs, keyways or passages, and flanges of adjoining lath-sections, as will be readily un- 9 5 derstood. y r

Having thus fully described myinvention, What I claim, and desire to secure by Letters Patent, is

1. As a new article of manufacture, the mo metallic lath having a series of keys each comprising a struck-up or sunken, approximately pyramidal, trough or cup and a series of lateral flanges or ledges flanking the outer edges of said trough, or cup, and the keyways or passages formed at each side of the troughs and by the sinking of said troughs therein, substantially as described.

2. As a new article of manufacture, t h metallic lath having a series of keys, each key comprising a sunken or struck-up trough, or cup, approximately pyramidal in its general outline or contour, and a series of lateral flanges or ledges flanking the outer edges of said troughs or cups, and the keyways or passages formed at each side of the troughs and by the sinking of said troughs therein, substantially as described.

8. As a new article of manufacture, the

lath having the sunken troughs provided with lateral ledges or flanges forming keyways, substantially as set forth.

4. As a new article of manufacture, the lath having the sunken or depressed troughs provided with lateral flanges and flared ends, substantially as specified.

5. As a new article of manufacture, the lath having troughs with flared ends and lateral flanges, and lateral flanges or ledges along the edges of the keyways or passages formed by sinking or depressing said troughs, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE A. TURNBULL.

Witnesses:

PERCY GERALD .TURNBULL, K. D. I-IARGER. 

